{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=CG5503+IR",
    "query": {
      "intervention": "CG5503 IR"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 6,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-03T16:14:52.975Z",
  "attribution": "Data derived from public ClinicalTrials.gov records. The official record at https://clinicaltrials.gov/ remains the source of truth for current availability, contacts, and full study details.",
  "notes": [
    "This endpoint exposes only public summary fields — no participant contact emails, phone numbers, or scraped investigator contact details.",
    "For contact information and full protocol detail, follow each trial's `official_url` to the ClinicalTrials.gov record.",
    "This API is a navigational aid. It does not provide medical advice, eligibility determinations, or compensation guarantees."
  ],
  "trials": [
    {
      "nct_id": "NCT01500317",
      "title": "Comparison of the Effects of Tapentadol and Oxycodone on Gastrointestinal and Colonic Transit in Humans",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Effects of 2 Mu-opiates on Gastrointestinal Transit"
      ],
      "interventions": [
        {
          "name": "Tapentadol",
          "type": "DRUG"
        },
        {
          "name": "Oxycodone",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 38,
      "start_date": "2011-05",
      "completion_date": "2011-12",
      "has_results": true,
      "last_update_posted_date": "2012-12-17",
      "last_synced_at": "2026-09-03T16:14:52.975Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01500317"
    },
    {
      "nct_id": "NCT00609466",
      "title": "A Trial to Evaluate CG5503 Efficacy and Safety in Acute Pain After Bunionectomy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Bunionectomy",
        "Pain",
        "Postoperative Pain",
        "Acute Pain"
      ],
      "interventions": [
        {
          "name": "CG5503 IR",
          "type": "DRUG"
        },
        {
          "name": "Morphine",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Grünenthal GmbH",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 291,
      "start_date": "2007-09",
      "completion_date": "2008-02",
      "has_results": true,
      "last_update_posted_date": "2011-11-16",
      "last_synced_at": "2026-09-03T16:14:52.975Z",
      "location_count": 6,
      "location_summary": "Pasadena, Maryland • Austin, Texas • Houston, Texas + 3 more",
      "locations": [
        {
          "city": "Pasadena",
          "state": "Maryland"
        },
        {
          "city": "Austin",
          "state": "Texas"
        },
        {
          "city": "Houston",
          "state": "Texas"
        },
        {
          "city": "San Antonio",
          "state": "Texas"
        },
        {
          "city": "San Marcos",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00609466"
    },
    {
      "nct_id": "NCT02081391",
      "title": "A Study to Look at Tapentadol Oral Solution in Children and Adolescents in Pain",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Acute Pain"
      ],
      "interventions": [
        {
          "name": "Tapentadol oral solution 4 mg/mL",
          "type": "DRUG"
        },
        {
          "name": "Tapentadol oral solution 20 mg/mL",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Grünenthal GmbH",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Day",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "1 Day to 18 Years"
      },
      "enrollment_count": 216,
      "start_date": "2015-02-19",
      "completion_date": "2019-03-14",
      "has_results": true,
      "last_update_posted_date": "2020-01-18",
      "last_synced_at": "2026-09-03T16:14:52.975Z",
      "location_count": 13,
      "location_summary": "Little Rock, Arkansas • Stanford, California • Miami, Florida + 9 more",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Stanford",
          "state": "California"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Louisville",
          "state": "Kentucky"
        },
        {
          "city": "The Bronx",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02081391"
    },
    {
      "nct_id": "NCT00771758",
      "title": "Tapentadol IR vs Oxycodone IR vs Placebo in Acute Pain From Vertebral Compression Fracture Associated With Osteoporosis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Back Pain"
      ],
      "interventions": [
        {
          "name": "oxycodone IR",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "DRUG"
        },
        {
          "name": "tapentadol IR",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Ortho-McNeil Janssen Scientific Affairs, LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "50 Years to 85 Years"
      },
      "enrollment_count": 108,
      "start_date": "2008-09",
      "completion_date": "2009-12",
      "has_results": true,
      "last_update_posted_date": "2014-05-09",
      "last_synced_at": "2026-09-03T16:14:52.975Z",
      "location_count": 37,
      "location_summary": "Haleyville, Alabama • Tallassee, Alabama • Peoria, Arizona + 34 more",
      "locations": [
        {
          "city": "Haleyville",
          "state": "Alabama"
        },
        {
          "city": "Tallassee",
          "state": "Alabama"
        },
        {
          "city": "Peoria",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Encinitas",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00771758"
    },
    {
      "nct_id": "NCT00986180",
      "title": "NUCYNTA (Tapentadol Immediate Release) Versus Oxycodone Immediate Release in the Treatment of Acute Low Back Pain",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pain",
        "Back Pain",
        "Low Back Pain",
        "Back Pain With Radiation"
      ],
      "interventions": [
        {
          "name": "NUCYNTA",
          "type": "DRUG"
        },
        {
          "name": "Oxycodone IR",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Ortho-McNeil Janssen Scientific Affairs, LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 667,
      "start_date": "2009-09",
      "completion_date": "2010-12",
      "has_results": true,
      "last_update_posted_date": "2012-12-19",
      "last_synced_at": "2026-09-03T16:14:52.975Z",
      "location_count": 74,
      "location_summary": "Mobile, Alabama • Phoenix, Arizona • Jonesboro, Arkansas + 71 more",
      "locations": [
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Jonesboro",
          "state": "Arkansas"
        },
        {
          "city": "Fresno",
          "state": "California"
        },
        {
          "city": "Garden Grove",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00986180"
    },
    {
      "nct_id": "NCT00364533",
      "title": "A Study to Evaluate the Effectiveness and Safety of Tapentadol(CG5503) in the Treatment of Acute Pain After Hip Replacement Surgery Compared With Oxycodone and Placebo Followed by a Voluntary Open-Label Extension For Safety",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Arthroplasty"
      ],
      "interventions": [
        {
          "name": "Tapentadol IR (CG5503)",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Oxycodone HCL IR",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Johnson & Johnson Pharmaceutical Research & Development, L.L.C.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 367,
      "start_date": "2006-10",
      "completion_date": "2007-12",
      "has_results": true,
      "last_update_posted_date": "2014-04-21",
      "last_synced_at": "2026-09-03T16:14:52.975Z",
      "location_count": 45,
      "location_summary": "Birmingham, Alabama • Mobile, Alabama • Sheffield, Alabama + 42 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Sheffield",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Fort Smith",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00364533"
    }
  ]
}